American national tapered pipe (NPT)

External threadInternal thread
Nominal threadTPIToolholderIn isert iToolholderInsert ii
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¹⁄16NPT ¹⁄8NPT27KTTR -16 KTTXR -16FTT32R6000 TTX32R6000-No tools available
¹⁄4NPT 3⁄8NPT18KTNR -16 KTNSR -16 S -KTNL16-16ER18NPTEZH SleevesEZTR060050-60-004 EZTR070060-60-004-
¹⁄4NPT 3⁄4NPT14KTNR -16 KTNSR -16 S -KTNL16-16ER14NPTEZH SleevesEZTR070060-60-004-
¹⁄2NPT14KTNR -16 KTNSR -16-16ER14NPTSINR1616S-16-16IR14NPT
3⁄4NPTS -KTNL16SINR2016S-16
1 NPTSINR2420S-16
1¹⁄2NPT 1¹⁄2NPT 2 NPT11.5KTNR -16 KTNSR -16 S -KTNL16-16ER11.5NPTCINR3025S-16 CINR3732S-16-16IR11.5NPT

JJ

  • Application of NPTF thread NPTF is the thread for sealing pipes without using any sealing material. Thread symbol is similar to NPT but the tolerance is different from that of NPT, therefore the above inserts are not available for NPTF.

30˚ Trapezoidal (Tr)

The JIS Standard Trapezoidal Size to be machined by previous TNN Insert are shown.

PitchExternal threadInternal thread
Nominal thread(mm)ToolholderInsert iiToolholderInsert iiBore
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Tr 16X2No tools availableNo tools available--14.00
Tr 18X2 Tr 20X22KTNR -16 KTNSR -16 S -KTNL1616ER200TR-SINR1616S-1616IR200TR-16.00 18.00
Tr 22X33SINR1616S-1616IR300TR-19.00
Tr 24X3 Tr 26X33SINR2016S-1616IR300TR-21.00 23.00
Tr 28X325.00
Tr 30X3SINR2420S-1616IR300TR-27.00
Tr 32X329.00
Tr 34X3331.00
Tr 36X3CINR3025S-1616IR300TR-33.00
Tr 38X3KTNR -1635.00
Tr 40X3KTNSR -1616ER300TR-37.00
Tr 42X3S -KTNL1639.00
Tr 44X341.00
Tr 46X343.00
Tr 48X345.00
Tr 50X33CINR3732S-1616IR300TR-47.00
Tr 52X349.00
Tr 55X352.00
Tr 60X357.00
Tr 65X362.00
Tr 70X466.00
Tr 75X471.00
Tr 80X476.00
Tr 90X4 Tr 95X44KTNR -2222ER400TR-CINR3732S-2222IR400TR-86.00 91.00
Tr 100X496.00
Tr 105X4101.00
Tr 110X4106.00
  • TM thread: TM thread (old JIS 30˚ trapezoidal thread) has been discontinued. But if the "Nominal dia. X pitch" is the same, the above Tr thread can be used.
  • TW thread: TW thread is 29˚ trapezoidal thread, therefore the above inserts are not available.